DS-System Help : Configuring the DS-System : Configuring the activity priority schedule
 
Configuring the activity priority schedule
You can configure the priority of individual activities on the DS-System and apply these changes to all DS-Client accounts or individual DS-Client accounts.
Consider the following when assigning priority levels:
• Activity priority is an internal priority level assigned to different activities that can run on the DS-System and occur at the backup level.
• When a higher priority activity locks a backup, it prevents lower priority activities from accessing the backup until he high priority activity has finished.
• Activities that are at the same priority level cannot interrupt one another. The first activity to lock a backup will maintain the lock until it has finished.
• Lower priority activities must always wait for higher priority activities to finish with a backup. Similarly, lower priority activities can be interrupted if a higher priority activity requests access to a backup they are processing.
IMPORTANT:  The initial settings for the default schedule are the recommended activity priorities for the DS-System. Do not change these settings unless you are familiar with the DS-Client activity patterns on the DS-System.
Since a backup can only be processed one activity at a time, each activity on the DS-System has a priority level that resolves conflicts when more than one activity tries to process the same backup. This determines the order in which activities can access and lock a backup for processing.
The following is a list of default activity priorities:
 
Table 4 DS-System default activity priorities
 
Activity
Iock_type 1
Default Priority Level (Lower # is higher priority)
Valid Range
1
System Compression
lock_type=12
1
1-10
2
Disaster Recovery
lock_type=15
1
1-2
3
Replication Receive
lock_type=22
1
1-10
4
Replication Delete
lock_type=23
1
1-10
5
Backup
lock_type=1
2
2-10
6
Restore
lock_type=3
2
2-10
7
Delete
lock_type=4
2
2-10
8
Retention
lock_type=5
2
2-10
9
Synchronization
lock_type=6
2
2-10
10
Validation
lock_type=7
2
2-10
11
Migration
lock_type=8
2
2-10
12
BLM Archiving
lock_type=9
2
2-10
13
Replication Send
lock_type=21
3
2-10
14
Replication Send - Repair
lock_type=32
3
2-10
15
Retire Storage
lock_type=16
4
2-10
16
Storage Scan
lock_type=17
5
2-10
17
System Validation
lock_type=13
6
2-10
18
File optimization
lock_type=14
6
2-10
19
Group Admin
lock_type=19
7
2-10
20
Deactivate DS-Client
lock_type=28
9
1-20
21
System Admin
lock_type=10
10
2-12
22
System Autonomic Healing
lock_type=11
11
2-12
23
CDP backup
lock_type=2
12
2-12
24
System Backup
lock_type=25
13
10-20
25
Storage Statistics
lock_type=18
14
10-20
26
Clean Libraries
lock_type=26
15
2-20
27
Clean Logs
lock_type=30
16
2-20
28
Empty Trash
lock_type=31
17
10-20
1 The lock_type number refers to the ID that is displayed in the System Status - Backup Set Locks tab (DS-Operator > Setup menu > System Activities: System).

Initially, there is one default activity priority schedule and all DS-Client accounts are assigned to it. The default activity priority schedule has two schedule details:
• The first detail covers the entire week (7-days / 24-hours) and contains a list of all the activities that are currently using the default settings. If you delete this detail or any activities in the Activity Priority list, any new details created will still work against the default priority settings.
• The second detail covers regular business hours (08:00-18:00 Monday to Friday) and contains (initially) one activity: CDP. Its priority is increased (with respect to its default setting) from “12” to “2”. The effect is that during business hours, CDP backups that are protecting high value data changes will not be interrupted by activities such as System Admin, autonomic healing, replication, etc.
Only one detail can apply at a time. For each activity that is about to start, the DS-System checks which activity priority should apply at that day and time. If any details overlap (e.g. start at the same time on the same day), the DS-System selects the detail that ends sooner (closer to the current time on DS-System). If two details start and end at the same time on the same day, the latest (bottom / lowest) one in the Schedule Detail list is applied.
NOTE:  To change the activity priorities for all DS-Client accounts at the same time, you can adjust the default schedule.
To configure an activity priority schedule:
1. On the Setup menu, click Activity Priority Schedule.
2. Under Activity Priority Schedule, do one of the following:
• To add an activity priority schedule, click New.
• To modify an activity priority schedule, select the schedule, and then click Modify.
• To update the list of activity priority schedules, click Refresh.
• To restore the default settings, click Restore Defaults.
NOTE:  To delete an activity priority schedule, select the schedule, and then click Delete.
3. In the New/Modify Activity Priority Schedule Name dialog box, type the name of the priority schedule, and then click OK. New activity monitor schedules will have the same schedule details as the default schedule.
4. Under Schedule Details, do one of the following:
• To add a schedule detail, click New.
• To modify a schedule detail, select the schedule detail, and then click Modify.
NOTE:  To delete a schedule detail, select the schedule detail, and then click Delete.
• To update the schedule details list, click Refresh.
5. In the New / Modify Schedule Detail dialog box, select the days, start time, and end time for the schedule detail, and then click OK. New schedule details will have a blank Activity Priority list.
6. Under Activity Priority, do one of the following:
• To add an activity priority, click New.
• To modify an activity priority, select the activity priority, and then click Edit.
NOTE:  To delete an activity priority, select the activity priority, and then click Delete.
• To update the list of activity priorities, click Refresh.
7. In the New/Modify Activity Priority dialog box, do the following:
a) In the Activity Type box, select the type of activity.
b) In the Priority box, enter a priority level (number between 2 and 10).
c) Click OK. The default schedule is automatically assigned to all new and existing DS-Client accounts.
8. To reassign a DS-Client to a different activity priority schedule, select the activity priority schedule from which you want to reassign a DS-Client, and then do the following:
a) Under DS-Clients assigned to this activity priority schedule, click Assign to DS-Client.
b) In the Activity Priority Management dialog box, to view DS-Clients belonging to a specific customer, beside the Account # box, click [...], and then do the following
1. In the Customer Name box, type the name of the customer.
2. In the Account # box, type the account number.
3. Click Find.
4. Select the account for which you want to view DS-Clients, and then click Select.
c) Select the DS-Client that you want to reassign to the activity priority schedule (use the Ctrl key to select multiple DS-Clients), and then click Set.
d) Click Close.
9. Click Close.